What is not a characteristic of cell differentiation
A) stable phenomenon
B) unstable phenomenon
C) controlled by genetic factors
D) precedes morphological difference

Answers

Answer 1

Answer:

B) unstable phenomenon

Explanation:


Related Questions

Which is NOT Part of the Cell Theory
A. All living things have cells
B. Cells must have complex interworking parts
C. All cells reproduce
D. Cells are the smallest unit that perform life functions​

Answers

Answer: B

Explanation:

Cells do not have to have complex interworking parts, they just have to do the job for the body. The answer is B.

Help due tomorrow what is it please help??

Answers

Answer: Erosion is the correct answer

The area where an organism gets everything it needs is called its

Answers

Answer:

D

Explanation:

The place where an organism lives and that provides the things the organism needs is called ist habitat...

As time progressed and technology improved, microscopes were able to give clearer images of extremely tiny objects. How did this development advance the cell theory?
please be sure that you include at least 3-4 full sentences

Answers

Answer: plz give brainlist

Robert Hooke is accredited with observing the first cells in 1665. At that time, Robert Hooke used a microscope to look at cork cells.

In 1670, Antoni van Leeuwenhoek was accredited with being the first scientist to discover pond life. He used lenses to make the discovery.

Robert Brown (1773-1858) used a microscope to discover the nucleus.

Thermal specialists versus thermal generalists and the idea of thermal niche

Answers

Answer:

elaborate

Explanation:

7. China was the largest emitter of greenhouse gases in 2008. TRUE or FALSE:

Answers

Answer:

True

Explanation:

Googled It

...............

Answer:

true

Explanation:

My parents jus order the ps5 they just told.me it will be here next weel​

Answers

Answer:

U IS LUCKY A F

Explanation:

HOPE U ENJOY IT

Answer:

i also have a ps5

Explanation:

- Which pair of features is correct for both a human liver cell and an Escherichia coli bacteria cell?

Answers

Answer:

contains DNA associated with protein, contains naked DNA

Explanation:

E coli are prokaryotes with naked DNA found in the cytoplasm. In contrast, human liver cells contain DNA present in a nucleus, a membrane-enclosed organelle. The DNA is associated with proteins (forming a structure called chromatin).

Human liver cells contain mitochondria, but E Coli do not contain membrane-bound organelles.

Eukaryotic ribosomes are larger than prokaryotic ribosomes. Eukaryotic ribosomes are 80S in size, prokaryotic are 70S in size.

Please please answer if you get it right I will mark brainliest

How can competition contribute to evolution through natural selection?

Answers

Answer: During competition, organisms that have favorable traits for this task will survive and are said to be selected. These organisms will reproduce and pass on those traits to their offspring. Thus, the frequency of organisms with those traits will increase

Explanation: In Darwin's theory on the mechanism of evolution, competition among living things is viewed as a major part of the “struggle for existence” and therefore as a basis for natural selection (Darwin 1872).

Intraspecific competition occurs between members of the same species. For example, two male birds of the same species might compete for mates in the same area. This type of competition is a basic factor in natural selection. It leads to the evolution of better adaptations within a species.

Is the following sentence true or false? The apparent change in the
frequency and wavelength of a wave as it moves toward or away from an
observed is know as the Doppler effect.

True or False

Answers

Answer:

True

Explanation:

Doppler's effect is the apparent change in the wavelength and frequency of a wave as it moves towards or away from an observer.

The relative motion between the observer and the source causes changes to the wavelength and frequency. This effect is the doppler's effect. When a source moves closer, the frequency of the wave increases. For example, we see that effect of water ripples when a stone is dropped in still water.

Which star may have once been similar to our sun in mass and luminosity?
A. Deneb
B. Spica
C. Procycon b
D. Proxima centauri

Answers

Answer:

c. procycon b :)

Which ocean current directly affects the weather along the southernmost coast of the eastern United States A. Gulf Stream B. Monsoon current C. North Atlantic Drift D. South Pacific Equatorial Current

Answers

Equatorial current, ocean current flowing westward near the equator, predominantly controlled by the winds. Characteristically, equatorial-current systems consist of two westward-flowing currents approximately 600 miles (1,000 km) wide (North and South equatorial currents) separated by an eastward-flowing countercurrent only 300 miles (480 km) wide. Usually flowing at depths of less than 1,650 feet (500 m), equatorial currents travel at rates of 10 to 40 inches per second (25 to 100 cm per second). Equatorial undercurrents, centred on the equator at depths of 160 to 500 feet (49 to 152 m), flow eastward at rates up to 5 feet/s (1.5 m/s) and are approximately 1,000 feet (305 m) deep and 640 miles (1,030 km) wide.

Why is meiosis important in maintaining genetic diversity?

Question 6 options:

A Meiosis creates diversity by cutting each chromosome exactly in half.


B The two different chromosomes of the organism producing the sex cell (egg or sperm) are mixed up during crossover, creating a new combination of alleles.


C It creates sex cells (eggs or sperm) that have exactly the same alleles (version of a gene) as the parents.


D The chromosomes in meiosis are copied so they are exactly the same as the organism producing the gamete, except they have just one copy.

Answers

Answer:

We now know that meiosis is the process of chromosomal reduction which allows the production of haploid germ cells necessary for sexual reproduction. Meiosis is furthermore important for its role in enabling genetic diversity and facilitating the repair of genetic defects through recombination.

Explanation:

Brainliest please?

Meiosis is a specialized form of a cell division in which number of chromosomes is reduced to half. The reduction in chromosome number is achieved by one round of DNA replication and two rounds of chromosome segregation.    

Meiosis produces genetic variation by the process of recombination.Recombination occurs when two molecules of DNA exchange pieces of their genetic material. The process of recombination occurs during the prophase stage of meiosis I. In meiosis, crossing over occurs between the non-sister chromatids in a homologous pair (one from each parent) of chromosomes.

The correct answer is option B. The two different chromosomes of the organism producing the sex cell (egg or sperm) are mixed up during crossover, creating a new combination of alleles.

Other options-

A. Meiosis creates diversity by cutting each chromosome exactly in half - incorrect .In meiosis the chromosome number is reduced to half.

C. It creates sex cells (egg or sperm) that have exactly the same alleles (version of a gene) as the parents-incorrect. The sex cells produced are not genetically identical to the parent cell.

D. The chromosome in meiosis are copied so they are exactly the same as the organism producing the gamete, except they have just one copy-incorrect. In meiosis the chromosomes are not exactly copied.

Learn more about meiosis -

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what are 5 physical traits of a turkey

Answers

Answer:

feathers, eyes, gobbler, beak, head

Explanation:

⚠️⚠️⚠️Describe what occurs between water molecules in hydrogen bonding. Explain where the hydrogen bond happens.

Answers

The partially positive hydrogen atom of one molecule is then attracted to the oxygen atom of a nearby water molecule

A hydrogen bond in water occurs between the hydrogen atom of one water molecule and the lone pair of electrons on an oxygen atom of a neighboring water molecule.

_________ is required for energy given to proteins in the phospholipid layer.
a.Anaerobic
b.Aerobic
c.Active transport
d.Turgor
e. Passive transport

Answers

Answer:

A

Explanation:

Active transport is required for energy given to proteins in the phospholipid layer (Option c).

Active transport is a type of transport across a cell membrane that requires energy, usually in the form of ATP, to move substances (either molecules or ions) against a gradient of concentration.

Conversely, passive transport refers to the movement of substances across a membrane in favor of a concentration gradient, which does not require energy.

Active transport is mediated by transporter proteins known as carriers and/or pumps.

In conclusion, active transport is required for energy given to proteins in the phospholipid layer (Option c).

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3.The two phases of photosynthesis are _____ reactions and _____ reactions._____. DOC 1
a.)glucose-dependent
B)glucose-independent
C.)light-independent
d.)light-dependent

Answers

Answer:

c

Explanation:

needed for

photosynthesis

Why do you think in the table below, Adenine and Thymine have almost the same number – but not exactly?

Nucleotide

# found in genome

Adenine

701,234,142

Guanine

803,127,160

Cytosine

803,127,162

Thymine

701,234,146

Answers

Adenine pairs with thymine and Guanine pairs with cytosine. The numbers are not exactly the same because of the mutations that happen in DNA. Some of the DNA could be broken off or put somewhere else in the gene that would throw everything off, nothing is perfect. However in a perfect world, both adenine and thymine would have the same numbers.

Since transport of materials in and out of the cell can only happen at the cell's surface, what happens as cells get larger? How does this impose a limit on cell size?

Answers

Answer:

The surface area/volume ratio will decrease

Explanation:

How does this impose a limit on cell size?

Because the ability of a cell to exchange substances with its environment is proportional to its surface area.

Hence, if surface area/volume decrease and get too small, surface area is not sufficient to take up substances needed to support metabolism or get rid of wastes.

wich statement accurately describes the energy needs for photosynthesis and cellular respiration ?​

Answers

Answer:  solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration

Explanation:

If 35% of the bases in a region of the mouse genome are cytosine, what percentage in that region are adenine? 

A. 15%

B. 20%

C. 30%

D. 35%

E. 40%

Answers

Answer:

A. 15%

Explanation:

DNA is composed of four nitrogen bases: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). Chargaff's rule of base pairing states that A always pairs with T, while G always pairs with C. The total distributed percentage of the four 4 nitrogen bases must be equal to 100%. In this case, the C content is 35%, thereby G=35% (i.e., equal to C content), while the remaining 30% must be equally divided between T=15% and A=15%.

modeling DNA Mutations Table
base sequence of mutated strand

Answers

Answer: Only a single codon in the gene sequence is changed in base substitution mutation. Although a base substitution alters only a single codon in a gene, it can still have a significant impact on protein production.

Explanation:

please help. i am confuse and trying to figure out

Answers

Answer:

your right

Explanation:

u clicked on the right answer

Collecting wild specimen and allowing them to reproduce in an environment away from predation can also be called a
Your answer:

Answers

Answer:

Captive breeding program

Explanation:

A captive breeding program can be defined as the process of collecting wild specimen and allowing them to reproduce in an environment away from predation. This is an important part of saving endangered species. Specimens of such species are bred in zoos and similar facilities in order to build a healthy population. Sometimes, these species are successfully reintroduced back into the wild. Examples of animals that were successfully saved like this are the California condor, black-footed ferret, golden lion tamarin, and red wolf.

PLEASE HELP ASAP!!! :) | its only 3 questions ill give brainliest if your right
1.Which type of rock may result when sedimentary rock is exposed to extreme heat and pressure?


a. clastic

b. extrusive

c. igneous

d. metamorphic


2. In the rock cycle, how does rock become sediment?

a. Through weathering and erosion

b. through crystallization and solidification

c. through heat and pressure

d. through compaction and cementation


3. A Sedimentary rock containing a fern fossil was found. what does this tell about the area at the time the rock was formed?

a. The area was hot

b. The area was covered by and ocean

c. The area was cold

d. The area was on a land

Answers

Answer:

d. Metamorphic

a. Through weathering and erosion

d. The area was on land

Explanation:

Hope I helped!

Is it possible for it to rain at 0° F? (not snow)

Answers

im pritty sure no but my friend says yes somthing called frezzing rain sooooo

How are rocks and air alike? A. People use them to build things. B. They are on the ocean floor. C. They are natural resources. D. People need them to live.​

Answers

Answer:

i think its c

Explanation:

Answer: C.

Explanation: Natural resources are resources that exist without any actions of humankind. Basically materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain. Rocks are a source of natural resources and so is air. If the answer is not correct, then it must be D.


5. The image above is an example of which boundary?
a. Transform boundary
b. Convergent boundary
Divergent boundary
d. All of the above

Answers

Answer:

Divergent

Explanation:

Answer:

Im smart so the answer is "blah blah blah" saying the correct right answer

Explanation:


14. All the animals in Jurassic Park were_____ to control the populations.

Answers

Answer: Female

Explanation:

Females cant mate but somehow “life found a way”

Indicate whether a solution will have more OH– or H+ if the pH value of the solution
is 10.

Answers

A pH level of 10 is very alkaline, and one indicator of a solution being an base would be that it was a hydroxide (OH-) therefore the solution would have more OH- .

The solution with a pH value of 10 will have more OH- ions.  

In chemistry, pH is described as a scale that is specifically utilized to specify the basicity or acidity of an aqueous solution. The pH of different solutions are described as follows:

Acidic solution: If a solution has pH<7, then the solution is acidic and tend to have more H+ ions than OH- ions Neutral solution: The solution is neutral when pH=7 and the concentration of H+ and OH- ions are the same Basic solution: If a solution has pH>7, then the solution is Basic and tend to have more OH- ions than H+ ions

Thus, in this case, pH>7 and thus we can conclude that the solution will have more OH- ions than H+ ions.

Learn more about pH here:

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